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| author | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-08-29 14:44:40 +0400 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2014-09-09 10:53:27 +0400 |
| commit | 070b7be633dc33c0899e8c934b4d5fad046b06e8 (patch) | |
| tree | 4aa06300e711c8079754745e34852ac12c4dbfbf /arch/s390/include/asm/vdso.h | |
| parent | 369e8c355383143964290b6a706eb6639ae3588c (diff) | |
| download | linux-070b7be633dc33c0899e8c934b4d5fad046b06e8.tar.xz | |
s390/vdso: replace stck with stcke
If gettimeofday / clock_gettime are called multiple times in a row
the STCK instruction will stall until a difference in the result is
visible. This unnecessarily slows down the vdso calls, use stcke
instead of stck to get rid of the stall.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/include/asm/vdso.h')
0 files changed, 0 insertions, 0 deletions